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Small, practical examples. Search by task or narrow things down below.

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JavaScriptGetting Started

Convert known numeric text to an integer

JavaScript: Convert a trusted literal to an integer before adding. Validate external input before converting it.

JavaScript✓ Tested
TypeScriptGetting Started

Convert known numeric text to an integer

TypeScript: Convert a trusted literal to an integer before adding. Validate external input before converting it.

TypeScript✓ Tested
C++Getting Started

Convert known numeric text to an integer

C++: Convert a trusted literal to an integer before adding. Validate external input before converting it.

C++✓ Tested
CGetting Started

Convert known numeric text to an integer

C: Convert a trusted literal to an integer before adding. Validate external input before converting it.

C✓ Tested
Arduino / CDigital signals & interrupts

Copy a multibyte interrupt-owned counter atomically

Arduino / C: ATOMIC_RESTORESTATE restores the interrupt state after reading a shared value.

Arduino / C✓ Tested
HTMLTables & list numbering

Count an ordered list downward

HTML: The reversed attribute changes the native numbering direction.

HTML✓ Tested
Arduino / CGetting Started

Count down with a bounded loop

Arduino / C: Count down with a bounded loop on an Uno with the Serial Monitor set to 9600 baud.

Arduino / C✓ Tested
Bash ScriptsGetting Started

Count down with a while loop

Bash Scripts: Count down with a while loop with a small standalone Bash program.

Bash Scripts✓ Tested
GitBranches & ancestry

Create a branch from a known release tag

Git: A named starting revision makes the branch’s initial commit explicit.

Git✓ Tested
C#File operations & paths

Delete a known scratch file

C#: File.Delete ignores a missing file but still throws for other I/O failures.

C#✓ Tested
JavaFile operations & binary data

Delete a known temporary file if present

Java: deleteIfExists returns whether a file was removed and still reports other I/O errors.

Java✓ Tested
C++Filesystem operations

Delete one known scratch file

C++: filesystem::remove reports whether an item was removed and also supports empty directories.

C++✓ Tested